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Multiprocessing - Pipe vs Queue
... If you're subclassing Process, put the bulk of the 'run' method in a try block. That is also a useful way to do logging of exceptions. To replicate the normal exception output: sys.stderr.write(''.join(traceback.format_exception(*(sys.exc_info()))))
– travc
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How to set tbody height with overflow scroll
...
if you want tbody to show a scroll , turn it into a block.
To keep behavior of table , turn tr into table.
to spray evenly the cells , use table-layout:fixed;
DEMO
CSS for your HTML test :
table ,tr td{
border:1px solid red
}
tbody {
display:block;
height:...
Does java.util.List.isEmpty() check if the list itself is null? [duplicate]
...I deleted my stupid comment, before I saw your answer. Maybe he comes from PHP where we have !empty($foo) as somewhat an alias for isset($foo) && $foo != "".
– Aufziehvogel
Jul 16 '12 at 20:39
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Auto increment in phpmyadmin
I have an existing database using PHP, MySQL and phpMyAdmin.
9 Answers
9
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How to rethrow the same exception in SQL Server
... rethrow the same exception in SQL Server that has just occurred in my try block. I am able to throw same message but I want to throw same error.
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Accessing @attribute from SimpleXML
...ode. You can then var_dump the return value of the function.
More info at php.net
http://php.net/simplexmlelement.attributes
Example code from that page:
$xml = simplexml_load_string($string);
foreach($xml->foo[0]->attributes() as $a => $b) {
echo $a,'="',$b,"\"\n";
}
...
Why do people say that Ruby is slow? [closed]
...me:
Ruby 1.9 vs. Python3 within the same order of magnitude
Ruby 1.9 vs. PHP within the same order of magnitude
Ruby 1.9 vs. Java 6 server up to two orders of magnitude slower!
Ruby 1.9 vs. C (gcc) up to two orders of magnitude slower!
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Why is Ruby considered slow?
Depends on whom you as...
Proper use of beginBackgroundTaskWithExpirationHandler
...endTaskWithKey:taskKey];
Optionally, if you want to provide a completion block that does something beyond ending the task (which is built in) you can call:
NSUInteger taskKey = [[BackgroundTaskManager sharedTasks] beginTaskWithCompletionHandler:^{
//do stuff
}];
Relevant source code availa...
Check element CSS display with JavaScript
Is it possible to check if an element's CSS display == block or none using JavaScript?
9 Answers
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How to measure time taken between lines of code in python?
...ll show the following after the indented line(s) finishes executing:
Code block took: x.xxx ms
UPDATE: You can now get the class with pip install linetimer and then from linetimer import CodeTimer. See this GitHub project.
The code for above class:
import timeit
class CodeTimer:
def __init...